LDAP: Provide a common sdap_set_sasl_options init function

The AD and IPA initialization functions shared the same code. This patch
moves the code into a common initialization function.

4 files changed, 95 insertions, 91 deletions

diff --git a/src/providers/ad/ad_common.c b/src/providers/ad/ad_common.c
index 21a7b534..8600dab2 100644
--- a/src/providers/ad/ad_common.c
+++ b/src/providers/ad/ad_common.c
@@ -422,13 +422,7 @@ ad_get_id_options(struct ad_options *ad_opts,
     TALLOC_CTX *tmp_ctx;
     struct sdap_options *id_opts;
     char *krb5_realm;
-    char *sasl_primary;
-    char *desired_primary;
-    char *sasl_realm;
-    char *desired_realm;
     char *keytab_path;
-    bool primary_requested = true;
-    bool realm_requested = true;
 
     tmp_ctx = talloc_new(NULL);
     if (!tmp_ctx) return ENOMEM;
@@ -478,19 +472,6 @@ ad_get_id_options(struct ad_options *ad_opts,
            id_opts->basic[SDAP_KRB5_REALM].opt_name,
            krb5_realm));
 
-    /* Configuration of SASL auth ID and realm */
-    desired_primary = dp_opt_get_string(id_opts->basic, SDAP_SASL_AUTHID);
-    if (!desired_primary) {
-        primary_requested = false;
-        desired_primary = dp_opt_get_string(ad_opts->basic, AD_HOSTNAME);
-    }
-
-    desired_realm = dp_opt_get_string(id_opts->basic, SDAP_SASL_REALM);
-    if (!desired_realm) {
-        realm_requested = false;
-        desired_realm = dp_opt_get_string(ad_opts->basic, AD_KRB5_REALM);
-    }
-
     keytab_path = dp_opt_get_string(ad_opts->basic, AD_KEYTAB);
     if (keytab_path) {
         ret = dp_opt_set_string(id_opts->basic, SDAP_KRB5_KEYTAB,
@@ -502,34 +483,17 @@ ad_get_id_options(struct ad_options *ad_opts,
                keytab_path));
     }
 
-    ret = select_principal_from_keytab(tmp_ctx,
-                                       desired_primary, desired_realm,
-                                       keytab_path, NULL,
-                                       &sasl_primary, &sasl_realm);
-    if (ret != EOK) goto done;
-
-    if ((primary_requested && strcmp(desired_primary, sasl_primary) != 0) ||
-        (realm_requested && strcmp(desired_realm, sasl_realm) != 0)) {
-        DEBUG(SSSDBG_FATAL_FAILURE,
-              ("Configured SASL auth ID/realm not found in keytab.\n"));
-        ret = ENOENT;
+    ret = sdap_set_sasl_options(id_opts,
+                                dp_opt_get_string(ad_opts->basic,
+                                                  AD_HOSTNAME),
+                                dp_opt_get_string(ad_opts->basic,
+                                                  AD_KRB5_REALM),
+                                keytab_path);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Cannot set the SASL-related options\n"));
         goto done;
     }
 
-    ret = dp_opt_set_string(id_opts->basic, SDAP_SASL_AUTHID, sasl_primary);
-    if (ret != EOK) goto done;
-    DEBUG(SSSDBG_CONF_SETTINGS,
-          ("Option %s set to %s\n",
-           id_opts->basic[SDAP_SASL_AUTHID].opt_name,
-           sasl_primary));
-
-    ret = dp_opt_set_string(id_opts->basic, SDAP_SASL_REALM, sasl_realm);
-    if (ret != EOK) goto done;
-    DEBUG(SSSDBG_CONF_SETTINGS,
-          ("Option %s set to %s\n",
-           id_opts->basic[SDAP_SASL_REALM].opt_name,
-           sasl_realm));
-
     /* fix schema to AD  */
     id_opts->schema_type = SDAP_SCHEMA_AD;
 
diff --git a/src/providers/ipa/ipa_common.c b/src/providers/ipa/ipa_common.c
index db736921..4c68f61d 100644
--- a/src/providers/ipa/ipa_common.c
+++ b/src/providers/ipa/ipa_common.c
@@ -168,14 +168,9 @@ int ipa_get_id_options(struct ipa_options *ipa_opts,
                        struct sdap_options **_opts)
 {
     TALLOC_CTX *tmpctx;
-    char *primary;
     char *basedn;
     char *realm;
     char *value;
-    char *desired_realm;
-    char *desired_primary;
-    bool primary_requested = true;
-    bool realm_requested = true;
     int ret;
     int i;
 
@@ -248,51 +243,17 @@ int ipa_get_id_options(struct ipa_options *ipa_opts,
                   dp_opt_get_string(ipa_opts->id->basic, SDAP_KRB5_REALM)));
     }
 
-    /* Configuration of SASL auth ID and realm */
-    desired_primary = dp_opt_get_string(ipa_opts->id->basic, SDAP_SASL_AUTHID);
-    if (!desired_primary) {
-        primary_requested = false;
-        desired_primary = dp_opt_get_string(ipa_opts->id->basic, IPA_HOSTNAME);
-    }
-    desired_realm = dp_opt_get_string(ipa_opts->id->basic, SDAP_SASL_REALM);
-    if (!desired_realm) {
-        realm_requested = false;
-        desired_realm = dp_opt_get_string(ipa_opts->id->basic, SDAP_KRB5_REALM);
-    }
-
-    ret = select_principal_from_keytab(tmpctx,
-                                       desired_primary, desired_realm,
-                                       dp_opt_get_string(ipa_opts->id->basic,
-                                                         SDAP_KRB5_KEYTAB),
-                                       NULL, &primary, &realm);
-    if (ret != EOK) {
-        goto done;
-    }
-
-    if ((primary_requested && strcmp(desired_primary, primary) != 0) ||
-        (realm_requested && strcmp(desired_realm, realm) != 0)) {
-        DEBUG(1, ("Configured SASL auth ID/realm not found in keytab.\n"));
-        ret = ENOENT;
-        goto done;
-    }
-
-    ret = dp_opt_set_string(ipa_opts->id->basic,
-                            SDAP_SASL_AUTHID, primary);
-    if (ret != EOK) {
-        goto done;
-    }
-    DEBUG(6, ("Option %s set to %s\n",
-              ipa_opts->id->basic[SDAP_SASL_AUTHID].opt_name,
-              dp_opt_get_string(ipa_opts->id->basic, SDAP_SASL_AUTHID)));
-
-    ret = dp_opt_set_string(ipa_opts->id->basic,
-                            SDAP_SASL_REALM, realm);
+    ret = sdap_set_sasl_options(ipa_opts->id,
+                                dp_opt_get_string(ipa_opts->id->basic,
+                                                  IPA_HOSTNAME),
+                                dp_opt_get_string(ipa_opts->id->basic,
+                                                  SDAP_KRB5_REALM),
+                                dp_opt_get_string(ipa_opts->id->basic,
+                                                  SDAP_KRB5_KEYTAB));
     if (ret != EOK) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Cannot set the SASL-related options\n"));
         goto done;
     }
-    DEBUG(6, ("Option %s set to %s\n",
-              ipa_opts->id->basic[SDAP_SASL_REALM].opt_name,
-              dp_opt_get_string(ipa_opts->id->basic, SDAP_SASL_REALM)));
 
     /* fix schema to IPAv1 for now */
     ipa_opts->id->schema_type = SDAP_SCHEMA_IPA_V1;
diff --git a/src/providers/ldap/ldap_common.c b/src/providers/ldap/ldap_common.c
index da5786fb..07e9c5d4 100644
--- a/src/providers/ldap/ldap_common.c
+++ b/src/providers/ldap/ldap_common.c
@@ -999,6 +999,78 @@ done:
     return ret;
 }
 
+errno_t
+sdap_set_sasl_options(struct sdap_options *id_opts,
+                      char *default_primary,
+                      char *default_realm,
+                      const char *keytab_path)
+{
+    errno_t ret;
+    TALLOC_CTX *tmp_ctx;
+    char *sasl_primary;
+    char *desired_primary;
+    char *sasl_realm;
+    char *desired_realm;
+    bool primary_requested = true;
+    bool realm_requested = true;
+
+    tmp_ctx = talloc_new(NULL);
+    if (!tmp_ctx) return ENOMEM;
+
+    /* Configuration of SASL auth ID and realm */
+    desired_primary = dp_opt_get_string(id_opts->basic, SDAP_SASL_AUTHID);
+    if (!desired_primary) {
+        primary_requested = false;
+        desired_primary = default_primary;
+    }
+
+    desired_realm = dp_opt_get_string(id_opts->basic, SDAP_SASL_REALM);
+    if (!desired_realm) {
+        realm_requested = false;
+        desired_realm = default_realm;
+    }
+
+    ret = select_principal_from_keytab(tmp_ctx,
+                                       desired_primary, desired_realm,
+                                       keytab_path,
+                                       NULL, &sasl_primary, &sasl_realm);
+    if (ret != EOK) {
+        goto done;
+    }
+
+    if ((primary_requested && strcmp(desired_primary, sasl_primary) != 0) ||
+        (realm_requested && strcmp(desired_realm, sasl_realm) != 0)) {
+        DEBUG(SSSDBG_CRIT_FAILURE,
+               ("Configured SASL auth ID/realm not found in keytab.\n"));
+        ret = ENOENT;
+        goto done;
+    }
+
+    ret = dp_opt_set_string(id_opts->basic,
+                            SDAP_SASL_AUTHID, sasl_primary);
+    if (ret != EOK) {
+        goto done;
+    }
+    DEBUG(SSSDBG_CONF_SETTINGS, ("Option %s set to %s\n",
+          id_opts->basic[SDAP_SASL_AUTHID].opt_name,
+          dp_opt_get_string(id_opts->basic, SDAP_SASL_AUTHID)));
+
+    ret = dp_opt_set_string(id_opts->basic,
+                            SDAP_SASL_REALM, sasl_realm);
+    if (ret != EOK) {
+        goto done;
+    }
+
+    DEBUG(SSSDBG_CONF_SETTINGS, ("Option %s set to %s\n",
+          id_opts->basic[SDAP_SASL_REALM].opt_name,
+          dp_opt_get_string(id_opts->basic, SDAP_SASL_REALM)));
+
+    ret = EOK;
+done:
+    talloc_free(tmp_ctx);
+    return ret;
+}
+
 static const char *
 sdap_gssapi_get_default_realm(TALLOC_CTX *mem_ctx)
 {
diff --git a/src/providers/ldap/ldap_common.h b/src/providers/ldap/ldap_common.h
index 034dc995..86079fa6 100644
--- a/src/providers/ldap/ldap_common.h
+++ b/src/providers/ldap/ldap_common.h
@@ -228,4 +228,11 @@ sdap_attrs_get_sid_str(TALLOC_CTX *mem_ctx,
                        struct sysdb_attrs *sysdb_attrs,
                        const char *sid_attr,
                        char **_sid_str);
+
+errno_t
+sdap_set_sasl_options(struct sdap_options *id_opts,
+                      char *default_primary,
+                      char *default_realm,
+                      const char *keytab_path);
+
 #endif /* _LDAP_COMMON_H_ */